Castore Athletic Jersey Black with Kutxabank Sponsorship

This is a professional football (soccer) match jersey by Castore, designed for Athletic Club Bilbao’s away or third kit. The jersey features a sophisticated black base with an intricate geometric pattern of diagonal lines and dot matrices in varying shades of gray, creating a dynamic, tech-inspired visual depth. Prominently displayed across the chest is the 'Kutxabank' sponsor logo in bold white lettering with black outline. The club crest — Athletic Club’s iconic red-and-white striped shield with a green oak tree and Basque cross — sits on the left chest, while the Castore brand logo (a stylized winged 'C') appears on the right chest. The collar bears the Castore tagline 'ELEVATE PERFORMANCE', and both sleeves feature official LaLiga patches (right sleeve: LaLiga SmartBank/Segunda División patch with 'B' indicating Segunda; left sleeve: Athletic Club’s red-and-white triangular badge). Constructed from high-performance moisture-wicking fabric, it offers breathability and stretch for optimal athletic movement. Ideal for fans, collectors, or casual sportswear styling, this jersey blends elite sports functionality with modern streetwear aesthetics. Perfect for matchdays, training sessions, or urban athleisure wear during spring/fall seasons.